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. 2017 Aug 3;12(8):e0182351. doi: 10.1371/journal.pone.0182351

Fig 3. Reflectance spectra of oxygenated and deoxygenated first dorsal interosseous muscles (back of the hand) from a healthy adult.

Fig 3

Only the highlighted regions in the visible and near infrared (NIR) are used in the analyses to determine muscle oxygenation.